MD Settings: Fix the Network Prediction toggle box.

chrome/browser/resources/settings/privacy_page/privacy_page.html

 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/cr_elements/policy/cr_policy_vars_css.html">
 <link rel="import" href="chrome://resources/html/web_ui_listener_behavior.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-flex-layout/iron-flex-layout-classes.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/neon-animation/neon-animatable.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-button/paper-button.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-icon-button/paper-icon-button-light.html">
 <link rel="import" href="../clear_browsing_data_dialog/clear_browsing_data_dialog.html">
 <link rel="import" href="../controls/settings_toggle_button.html">
 <link rel="import" href="../lifetime_browser_proxy.html">
@@ skipping 60 matching lines @@
         <div class="settings-box" hidden="[[!pageVisibility.searchPrediction]]">
           <settings-toggle-button class="start"
               pref="{{prefs.search.suggest_enabled}}"
               label="$i18n{searchSuggestPref}">
           </settings-toggle-button>
         </div>
         <div class="settings-box"
             hidden="[[!pageVisibility.networkPrediction]]">
           <settings-toggle-button class="start"
               pref="{{prefs.net.network_prediction_options}}"
-              label="$i18n{networkPredictionEnabled}">
+              label="$i18n{networkPredictionEnabled}"
+              numeric-checked-value="[[networkPredictionEnum_.WIFI_ONLY]]"
+              numeric-unchecked-value="[[networkPredictionEnum_.NEVER]]">
           </settings-toggle-button>
         </div>
         <div class="settings-box">
           <div class="start">$i18n{safeBrowsingEnableExtendedReporting}</div>
           <paper-toggle-button id="safeBrowsingExtendedReportingControl"
               on-tap="onSafeBrowsingExtendedReportingControlTap_"
               checked="[[safeBrowsingExtendedReportingEnabled_]]">
           </paper-toggle-button>
         </div>
         <div class="settings-box">
@@ skipping 365 matching lines @@
           <category-setting-exceptions
               category="{{ContentSettingsTypes.PROTECTED_CONTENT}}">
           </category-setting-exceptions>
 </if>
         </settings-subpage>
       </template>
     </settings-animated-pages>
   </template>
   <script src="privacy_page.js"></script>
 </dom-module>